Evil does not concern it's self with regulations or Executive orders. 

"Evil exists all around us, but looking back at the historical record of the past 200 years, across the globe, where is “evil” and “malevolence” most often found? In the hands of those with the power, the governments. That greatest human tragedies on record and the largest loss of innocent human life can be attributed to governments. Who do the governments always target? “Scapegoats” and “enemies” within their own borders…but only after they have been disarmed to the point where they are no longer a threat. Ask any Native American, and they will tell you it was inferior technology and lack of arms that contributed to their demise. Ask any Armenian why it was so easy for the Turks to exterminate millions of them, and they will answer “We were disarmed before it happened”. Ask any Jew what Hitler’s first step prior to the mass murders of the Holocaust was- confiscation of firearms from the people".

 All citizens need to protect themselves, even on government property.